May 2012
Intermediate to advanced
440 pages
9h 1m
English
Content preview from Oracle Advanced PL/SQL Developer Professional GuideBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Varray
Varrays were introduced in Oracle8i as a modified format of a nested table. The varray or variable size arrays are bounded and the persistent form of collection whose major operational features resemble nested tables. The varray declaration defines the limit of elements a varray can accommodate. The minimum bound of the index is 1, current bound is the total number of resident elements and maximum bound is the varray size. At any moment, the current bound cannot exceed the maximum bound.
Like nested tables, varrays can be created as database objects and can also be used in PL/SQL. Though the implementation is the same as a nested table, varray follow a different storage orientation than the nested tables. They are stored in line with their ...
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